One of the passengers who bit into a turkey sandwich containing needles on Delta Air Lines last week, had a needle puncture the roof of his mouth. He is now taking the drug Truvada, recently approved by the FDA as a treatment for HIV.

The medication is a precautionary measure, as the needles are being tested to see of there is any type of substance on them. The FBI is currently working with the CBP and local police to find out how the needles were put into the sandwiches.